ⓘ  What happened

Microsoft's April 2026 security update introduced stricter driver signature validation as part of a broader effort to improve Windows security. This industry-wide change removes trust for older cross-signed driver certificates used by many hardware vendors, including XIMEA. As a result, some USB camera drivers may now be blocked by Windows. This is caused by external operating system security enforcement and does not indicate any defect or malfunction in XIMEA hardware or software. The update is rolling out gradually across Windows 11 systems, so affected users may see the issue at different times.

🖥  What this means for you

On Windows systems where Microsoft has already deployed this specific security update, XIMEA USB cameras may temporarily fail to initialize. Our PCIe camera products are not affected by this update and remain fully operational.

🔧  Interim workaround

To help customers maintain immediate operational continuity, our technical team has prepared temporary workaround packages for IT administrators. To temporarily disable the affected driver restrictions, download the Disable Driver Restriction Policy package.

When you are ready to restore the standard Windows driver policy, download the Restore Driver Policy package.

Please note: this temporary workaround is provided for informational purposes to support your IT administration. Any changes to system security settings or Windows update policies are performed at your organization's own discretion and risk.

🗎  Permanent fix

As this compatibiliy transition is driven by external operating system updates beyond our control, our role is focused on active migration. Our software engineering team is prioritizing the development or a driver update package that complies with Microsoft’s newly enforced verification standards. This development is our top priority and we will provide a timeline update as soon as the deployment schedule is confirmed.

📢  Stay informed

All updates regarding this issue will be posted to this page as progress is made. If your IT team has any technical questions, please do not hesitate to contact our support team. We apologize for the disruption and thank you for your patience.